Method for producing a muffler

Details Method for producing a muffler Method for producing a muffler

1983-04-11

1985-10-22

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291573A, 29520, 181243, 285382, 2853821, 2853827, B21D 5300, B21D 5388

Patent

active

045479429

ABSTRACT:
A method of rigidly connecting a plate and a tube such as those of a muffler associated with an internal combustion engine. The plate is formed with an eyelet by burring or like technique and, then, the tube is inserted into the eyelet as far as a predetermined position. A stop is placed to backup the plate at a flat surface of the latter where a flange produced by the eyelet is absent. This is followed by driving a die to compress the flange in such a manner as to reduce the diameter of the eyelet, thereby plastically deforming the flange. Part of the flange proportional to the decrease in diameter is caused to thrust into the periphery of the tube.

REFERENCES:
patent: 1787942 (1931-01-01), Kalloch, Jr.
patent: 1812509 (1931-06-01), Benson
patent: 2053239 (1936-09-01), Forrer et al.
patent: 2065586 (1936-12-01), Hoesel
patent: 3921754 (1975-11-01), Hess
patent: 4130932 (1978-12-01), Epmeier

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